Safety-envelop.



E. DARR.

SAFETY EA'VELOP. APPLICATION FILED APR, 21,- I91 1.

1,278,115. PafentedSept. 10,1913.

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INVENTOR WITNESSES 77168} 1?. Dari ATTORNEY erence will be it nnnns'r nDana-or LOS ANGELES, CALIFORNIA.

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I Specification of Letters Patent.

Application filed April 21, 1917. Serial No. 163,680.

To all whom it may concern: I Be it known that I, ERNEST R. BARR, acitizen of the United States, residing at Los Angeles, in the county ofLos Angeles and State of California, have invented certain new anduseful- Improvements in Safety v Another object of the invention is topro- L. videa series of flaps, with means for 1nter-' locking the samewith the main flaps of the envelop.

. Another object of the invention is to pro vide means for securing theinterlocking fia s to the-under face of the main flaps.

Xnother object of the invention is to provide a device of this characterwhich is simple and durable in construction, reliable and eficient inoperation and one which can be manufactured and placed upon the marketat a minimum cost. 7

The invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to hehereinafter fully described and specifically pointed out in the appendedclaim.

In describing my invention in detail, refhad to the accompanyingdrawings, wherein like characters denote like or" corresponding partsthroughout the several views, and in which: Figurel is a rear view of anenvelop supplied with my invention.

Fig. 2 is a section onlme 2-2 of Fig. 1. Fig. his a plan view of theblank before being folded.

.In these figures, 1 indicates the envelop supplied with the bottom flap2, the top flap 3 and the two end flaps 4L and 5. The top flap isprovided with an extension strip 6 1ntermediate its ends and the bottomflap 18 provided with the two extensions 7 and 8, each of saidextensionsbeing located intermediate the two converging edges of the said flap.These three extensions form additional closing flaps and are providedwith adhesive substances on their outer surfaces at their extreme endsand the top flap is provided with two slots' 9 and 10 for receiving theends of the flaps 7 and 8 and the bottom flap 2 is provided with a slot11 for receiving the flap 6. It will be seen that the flaps 6, 7 and 8enter the slots from the top or outer surface of the main flap 3 so thatthey cover portions of the adhesive coated edgesof the main flaps.

After the letter is inserted in the envelop, the adhesive material onthe outer surfaces of the three flaps and that on the under surface ofthe top flap ismoistened and then the envelop without mutilatmg thesame.

It is thought from the foregoing that the Patented Sept. 10, 1918.

the flaps 6, 7 and 8 are inserted in their re advantages and novelfeatures of my invention will be readily apparent.

v I desire it to be understood that I may make slight changes in theconstruction and in the combination and arrangement of the severalparts, provided that such changes fall within the scope of the appendedclaim.

I claim as my invention:

' A safety envelop including a pair of main flaps, the upper main flabeing provided with'a pair of slits paralle to the longitudinal edge ofthe envelop and adjacent the lat- 'eral edges thereof, said flap beingprovided with an elongated tongue at the juncture of the two convergingedges thereof, the lower main flap having a pair of elongated tongueswhich extend parallel to and adjacent the lateral edges of the envelopto be received in the slits in the upper flap so that said tonguesoverlap the converging edges of the upper flap, said lower fla beingprovided with a central slit parall to the longitudinal edges of theenvelop to' receive "the a sume tongues of the upper flag I so that saidIn testimeny whereof I affix my signatlme' tongues overlie the lowermam-flap, and said in presence of two witnesses.

tongues havin an'adhesivesubstance onthe ERNEST R D outer faces 0theirends So that the ends 1 5 ofsaid tongues may extend thrqugh 22MWitnesses: I I

slip and may adhere bathe inner aces of LEwxs R. SPENGLER',

the upper and lower main flaps

